Fig. 1From: Insulin-like growth factor binding protein-2: a new circulating indicator of pulmonary arterial hypertension severity and survivalBox and whisker plot of serum IGFBP2 levels in subgroups of APAH (N = 81) and IPAH (N = 46) in JHPH cohort (a) versus healthy control (N = 128). Boxes represent the interquartile range (IQR 5–95%) and horizontal lines are the median. Outliers are indicated with solid dots. b The subgroups of APAH (N = 98), IPAH (N = 85), and FAPH (N = 20) in the PAHB cohort in the same styleBack to article page